Select the incorrect statements:
(I) Pyruvate can be converted into lactic acid by yeast
(II) Fermentation is a form of anaerobic respiration
(III) Fermentation takes place in mitochondria
(IV)Fermentation takes place in yeast

Options

A. Both (I) and (II)
B. Both (I) and (III)
C. Both (II) and (III)
D. Both (II) and (IV)

Explanation

To solve the question, we need to analyze each statement provided and determine which ones are incorrect.

### Step-by-Step Solution:

1. **Analyze Statement I**: "Pyruvate can be converted into lactic acid by yeast."
- This statement is **incorrect**. Pyruvate is converted into lactic acid in animal cells (like muscle cells) during anaerobic respiration, but in yeast, pyruvate is converted into ethanol and carbon dioxide, not lactic acid.

2. **Analyze Statement II**: "Fermentation is a form of anaerobic respiration."
- This statement is **correct**. Fermentation occurs in the absence of oxygen and is indeed a type of anaerobic respiration.

3. **Analyze Statement III**: "Fermentation takes place in mitochondria."
- This statement is **incorrect**. Fermentation occurs in the cytoplasm of the cell, not in the mitochondria. Mitochondria are involved in aerobic respiration, not fermentation.

4. **Analyze Statement IV**: "Fermentation takes place in yeast."
- This statement is **correct**. Yeast is well-known for carrying out fermentation, particularly alcoholic fermentation, where it converts sugars into ethanol and carbon dioxide.

### Conclusion:
The incorrect statements are:
- Statement I: Pyruvate can be converted into lactic acid by yeast. (Incorrect)
- Statement III: Fermentation takes place in mitochondria. (Incorrect)

### Final Answer:
The incorrect statements are I and III.

---